78130983 has 16 divisors (see below), whose sum is σ = 125323520. Its totient is φ = 42296256.

The previous prime is 78130973. The next prime is 78131047. The reversal of 78130983 is 38903187.

It is not a de Polignac number, because 78130983 - 2¹² = 78126887 is a prime.

It is a super-2 number, since 2×78130983² = 12208901009092578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78130933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97510 + ... + 98307.

It is an arithmetic number, because the mean of its divisors is an integer number (7832720).

Almost surely, 2^78130983 is an apocalyptic number.

78130983 is a deficient number, since it is larger than the sum of its proper divisors (47192537).

78130983 is a wasteful number, since it uses less digits than its factorization.

78130983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195846.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 78130983 is about 8839.1732079420. The cubic root of 78130983 is about 427.5048992291.

The spelling of 78130983 in words is "seventy-eight million, one hundred thirty thousand, nine hundred eighty-three".